Flour sack

Bag used to store flour or feed

open multi-wall paper sack of flour

Bags or sacks for flour range in size and material, from large bulk bags, in cotton or woven polypropylene, to smaller consumer packaging, often made of paper.

## Package types

[edit]

### Bulk packaging

[edit]

40 kg. multi-wall paper sacks of flour

Flour is often shipped from the miller to bakeries, institutions, and other bulk uses. Sizes range from 10 kg to 100 kg. One traditional construction was cheap cotton bags. These printed cotton bags were sometimes viewed as collectables; other times the flour sack fabric was repurposed into a variety of household items.

Current practices are to use multi-wall paper sacks. Some include a layer of plastic film for barrier properties and insect control. Woven polypropylene bags are also used for high strength; at least one variety (Purdue Improved Crop Storage bags) also includes inner plastic bags.

### Consumer packaging

[edit]

Paper sack of flour. 5 pound, 2.27 kg

Consumer packages are often bags or sacks constructed of paper. Plastic films are also used, sometimes with reclosable features. Stand-up pouches of flour have recently been introduced.[1]

## Considerations

[edit]

### Contents

[edit]

A wide variety of wheat flour are available. Flour can also be made from other grains, roots, nuts, etc. Packaging engineers and food scientists need to understand the properties of the particular flour, intended handling and logistics systems, and desired shelf life.[2] Package forms and materials can be matched to these needs.[3]

### Insects

[edit]

Testing the ability of packages to resist insect infestation[4]

Insects can be a problem. When available, a suitable insecticide can be used; care must be used to ensure product safety. Hermetic plastic bags also help.[5][6] When insect infestation is noted, one method of stopping further growth is to freeze the sacks of flour for several days.[7]

## Cultural impact

[edit]

Reuel Colt Gridley became famous in the United States in 1864 by repeatedly selling a sack of flour to raise money for wounded U.S. Civil War veterans.

* Flour sack fabric has been used as a cheap source of fabrics for consumers to create their own textiles.
* Printed cotton bags were sometimes viewed as collectables.
* Various place names were named after flour sacks, since they were so ubiquitous in so many cultures. Blatobulgium in Scotland, and Pieniężno in Poland, for example, are possibly named after words for flour sack in different languages. The all-white tower in the old city of Ravensburg in Germany is called Mehlsack.
* Reuel Colt Gridley famously carried a 50-pound bag of flour on his shoulder after losing a political bet in Austin, Nevada. The sack of flour was later auctioned off, then re-donated, then re-auctioned again and again to raise money for the United States Sanitary Commission during the American Civil War. Auctioning this single flour sack eventually raised more than $250,000.[8]

## References

[edit]

1. ^ Peetrak, L (11 May 2017). "Flour companies rethink packaging". Baking Business. 99 (1): 64–69\. Archived from the original on 13 January 2023. Retrieved 1 October 2022.
2. ^ HRUŠKOVÁ, M (2002). "Changes of Wheat Flour Properties during Short Term Storage" (PDF). Czech J. Food Sci. 20 (4): 125–130\. doi:10.17221/3522-CJFS. Archived (PDF) from the original on 17 June 2022. Retrieved 15 October 2022.
3. ^ Vanhanen, L (2006). "The use of peroxide value as a measure of quality for walnut flour stored at five different temperatures using three different types of packaging" (PDF). Food Chemistry. 99 (1): 64–69\. doi:10.1016/j.foodchem.2005.07.020. Archived (PDF) from the original on 13 January 2023. Retrieved 1 October 2022.
4. ^ Cooke, Linda (March 1998). "Pest-Proofing Food Packaging" (PDF). Agricultural Research. Archived (PDF) from the original on 2012-10-04. Retrieved 2022-10-15.
5. ^ Baributsa, D (2022). "Hermetic Bags Help Afghan Rural Women Preserve Wheat Flour during Winter". Insects. 13 (3): 237. doi:10.3390/insects13030237. PMC 8953509. PMID 35323535.
6. ^ Lu, Jianhua (May 2015). "Effect of Wheat Flour Packaging Materials on Infestation by Lasioderma serricorne (F.)". Journal of Food Protection. 78 (5): 1052–1055\. doi:10.4315/0362-028X.JFP-14-438. PMID 25951407. Archived from the original on 9 November 2022. Retrieved 7 November 2022.
7. ^ Flinn, P W (2015). "Cold temperature disinfestation of bagged flour". Journal of Stored Products Research. 63: 42–46\. doi:10.1016/j.jspr.2015.06.001. Archived from the original on 15 October 2022. Retrieved 15 October 2022.
8. ^ Lea, Ralph & Kennedy, Christi (1 October 2005). Reuel Gridley and a sack of flour Archived 2020-05-31 at the Wayback Machine, Lodi News-Sentinel

* v
* t
* e

Bags and flexible containers

Carried|

* Bayong
* Bindle
* Briefcase
* Bug-out bag
* Dillybag
* Dromedary bag
* Flight bag
* Gaji bag
* Grocery bag
* Hambiliya
* Handbag
* Haversack
* Laundry bag
* Medical bag
* Money bag
* Nuclear briefcase
* Plastic shopping bag
* Red box (government)
* Reticule
* Reusable shopping bag
* Shell purse
* Shopping bag
* String bag
* Survival bag
* Swag
* Tote bag
* Tucker bag

Worn|

* Backpack (Canoe pack, Duluth pack)
* Bandolier bag
* Bivouac sack
* Book bag
* Fanny pack
* Golf bag
* Lightweight Rucksack
* Medicine bag
* Messenger bag
* Pack basket
* Pasiking
* Randoseru
* Sabretache
* Satchel
* Sporran
* Takiding

Luggage|

* Bug-out bag
* Carpet bag
* Diaper bag
* Diplomatic bag / pouch
* Duffel bag
* Garment bag
* Gig bag
* Gladstone bag
* Hobo bag
* Holdall
* Nomadic bag
* Norfolk case
* Portmanteau
* Saddlebag
* Suitcase
* Toiletry bag
* Train case
* Travel pack
* Trunk

Postal|

* Catcher pouch
* Mail bag
* Mail pouch
* Mail sack
* Mail satchel
* Mochila
* Padded envelope
* Portmanteau

Containers|

* Antistatic bag
* Bag-in-box
* Bin bag
* Biodegradable bag
* Bota bag
* Coffee bag
* Flexible intermediate bulk container
* Boil-in-bag
* Fuel bladder
* Mashk
* Milk bag
* Packet (container)
* Paper bag
* Paper sack
* Parfleche
* Pastry bag
* Pipe bag
* Plastic bag
* Purdue Improved Crop Storage bags
* Reusable shopping bag
* Sachet
* Security bag
* Shopping bag
* Stand-up pouch
* Thermal bag
* Tobacco pouch
* Trash bag
* Wineskin
* Zipper storage bag

Purses/handbags|

* Bayong
* Birkin bag
* Coin purse
* Evening bag
* Gaji bag
* Gucci Diana
* Handbag
* It bag
* Kelly bag
* Kinchaku
* Lady Dior
* Messenger bag
* Minaudière
* Money bag
* Reticule
* Tote bag
* Wallet
* Wristlet

Other|

* Body bag
* Burn bag
* Cowboy bedroll
* Doggy bag
* Dry bag
* Electronic flight bag
* Feedbag
* Flour sack
* Gamow bag
* Gunny sack
* Poop bag
* Sandbag
* Showbag
* Sickness bag
* Sleeping bag
* Stuff sack
* Throw bag
* Zuckertüte

* v
* t
* e

Packaging

General
topics|

* Active packaging
* Child-resistant packaging
* Contract packager
* Edible packaging
* Modified atmosphere/modified humidity packaging
* Overpackaging
* Package delivery
* Package pilferage
* Package testing
* Package theft
* Packaging engineering
* Resealable packaging
* Reusable packaging
* Reuse of bottles
* Shelf life
* Shelf-ready packaging
* Shelf-stable
* Sustainable packaging
* Tamper-evident
* Tamper resistance
* Wrap rage

Product
packages|

* Alternative wine closure
* Ammunition box
* Banana box
* Beer bottle
* Box wine
* Case-ready meat
* Coffee bag
* Cosmetic packaging
* Currency packaging
* Disposable food packaging
* Drink can
* Egg carton
* Evidence packaging
* Field ration
* Flour sack
* Foam food container
* Food packaging
* Fuel container
* Gas cylinder
* Glass milk bottle
* Growler
* Juicebox
* Low plastic water bottle
* Luxury packaging
* Milk bag
* Optical disc packaging
* Oyster pail
* Popcorn bag
* Pharmaceutical packaging
* Pizza box
* Plastic milk container
* Purdue Improved Crop Storage bags
* Sand bag
* Seasonal packaging
* Self-heating food packaging
* Screw cap (wine)
* Single-serve coffee container
* Spray paint
* Toothpaste pump dispenser
* Unit dose
* Water bottle
* Wine bottle

Containers|

* Aerosol spray dispenser
* Aluminium bottle
* Aluminum can
* Ampoule
* Antistatic bag
* Bag-in-box
* Bag
* Barrel
* Biodegradable bag
* Blister pack
* Boil-in-bag
* Bottle
* Box
* Bulk box
* Cage
* Case
* Carboy
* Carton
* Chub
* Clamshell
* Corrugated box design
* Crate
* Disposable cup
* Drum
* Endcap
* Envelope
* Euro container
* Flexible intermediate bulk container
* Flexible tank
* Folding carton
* Glass bottle
* Gunny sack
* Inhaler
* Insulated shipping container
* Intermediate bulk container
* Jar
* Jerrycan
* Jug
* Keg
* Mesh bag
* Multilayered packaging
* Multi-pack
* Packet (container)
* Padded envelope
* Pail
* Paper bag
* Paper sack
* Plastic bag
* Plastic bottle
* Retort pouch
* Salvage drum
* Sachet
* Water sachet
* Security bag
* Shipping container
* Shipping tube
* Skin pack
* Spray bottle
* Squround
* Stand-up pouch
* Steel and tin cans
* Tetra Brik
* Thermal bag
* Tub (container)
* Tube
* Unit load
* Vial
* Wooden box

Materials
and
components|

* Adhesive
* Aluminium foil
* Bail handle
* Bioplastic
* Biodegradable plastic
* BoPET
* Bubble wrap
* Bung
* Cellophane
* Closure
* Coated paper
* Coating
* Coextrusion
* Container glass
* Corrugated fiberboard
* Corrugated plastic
* Cushioning
* Desiccant
* Double seam
* Flip-top
* Foam peanut
* Gel pack
* Hot-melt adhesive
* Humidity indicator card
* Kraft paper
* Label
* Lid
* Linear low-density polyethylene
* Liquid packaging board
* Living hinge
* Low-density polyethylene
* Meat absorbent pad
* Metallised film
* Modified atmosphere
* Molded pulp
* Nonwoven fabric
* Overwrap
* Oxygen scavenger
* Package handle
* Packaging gas
* Pallet
* Paper
* Paper pallet
* Paperboard
* Plastic-coated paper
* Plastic film
* Plastic pallet
* Plastic wrap
* Polyester
* Polyethylene
* Polypropylene
* Pressure-sensitive tape
* Pump dispenser
* Screw cap
* Screw cap (wine)
* Security printing
* Security tape
* Shock detector
* Shock and vibration data logger
* Shrink wrap
* Slip sheet
* Staple (fastener)
* Strapping
* Stretch wrap
* Susceptor
* Tamper-evident band
* Tear tape
* Temperature data logger
* Time temperature indicator
* Tinplate
* Velostat

Processes|

* Aseptic processing
* Authentication
* Automatic identification and data capture
* Blow fill seal
* Blow molding
* Calendering
* Canning
* Coating
* Containerization
* Converting
* Corona treatment
* Curtain coating
* Die cutting
* Die forming (plastics)
* Electronic article surveillance
* Extrusion
* Extrusion coating
* Flame treatment
* Glass production
* Graphic design
* Hazard analysis and critical control points
* Hermetic seal
* Induction sealing
* Injection moulding
* Lamination
* Laser cutting
* Molding
* Package tracking
* Papermaking
* Plastic extrusion
* Plastic welding
* Printing
* Product development
* Production control
* Quality assurance
* Radio-frequency identification
* Roll slitting
* Shearing (manufacturing)
* Thermoforming
* Track and trace
* Ultrasonic welding
* Vacuum forming
* Vacuum packaging
* Verification and validation

Machinery|

* Barcode printer
* Barcode reader
* Bottling line
* Calender
* Can seamer
* Cap torque tester
* Cartoning machine
* Case sealer
* Check weigher
* Conveyor system
* Drum pump
* Extended core stretch wrapper
* Filler
* Heat gun
* Heat sealer
* Industrial robot
* Injection molding machine
* Label printer applicator
* Lineshaft roller conveyor
* Logistics automation
* Material-handling equipment
* Mechanical brake stretch wrapper
* Multihead weigher
* Orbital stretch wrapper
* Packaging machinery
* Pallet inverter
* Palletizer
* Rotary wheel blow molding systems
* Seed-counting machine
* Shrink tunnel
* Staple gun
* Tape dispenser
* Turntable stretch wrapper
* Vertical form fill sealing machine

Environment,
post-use|

* Biodegradation
* Can collecting
* Closed-loop box reuse
* Environmental engineering
* Glass recycling
* Industrial ecology
* Life-cycle assessment
* Litter
* Packaging waste
* Paper recycling
* PET bottle recycling
* Plastic recycling
* Recycling
* Reusable packaging
* Reverse logistics
* Source reduction
* Sustainable packaging
* Waste management

Category: Packaging
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template