If you move grain, sugar, rice, coffee, cocoa or other dry commodities in bulk, you have almost certainly handled a B-Twill jute sack. It is the standard, time-tested workhorse of agricultural packaging — strong, breathable, reusable and biodegradable. This guide explains what “B-Twill” actually means, the standard sizes and weights, and how to order sacks that fit your filling line and your market's rules.
What “B-Twill” means
B-Twill refers to the twill weave used for the sacking cloth — a diagonal-rib weave that is stronger and more tear-resistant than plain hessian, which is why it is preferred for heavy, repeatedly handled commodity bags. The cloth is woven from coarse jute yarn, then cut, folded and stitched into sacks (usually with an overhead and a mouth-hemmed finish).
Hessian (plain weave) suits lighter packaging and bags; B-Twill (twill weave) is the heavier-duty standard for grain and commodity sacks that take rough handling and stacking.
Standard sizes and weights
B-Twill sacks have long-established “standard” sizes for food grains, though exact dimensions and weights are set by the buyer's requirement and destination standards. A widely used food-grain size is around 44 × 26½ inches. The table below gives representative figures — always confirm the exact spec for your commodity and market with the mill.
| Parameter | Typical | Notes |
|---|---|---|
| Size (food grain) | ~44″ × 26½″ | Other sizes made to order |
| Capacity | ~50 kg | By commodity density |
| Cloth weight | quoted in oz/yd² or porter×shots | Heavier = stronger |
| Mouth finish | hemmed / overhead | For stitching or hand-sewing |
| Bag weight | ~0.9–1.25 kg each | Varies with cloth weight |
Food-grade and lined options
For foodstuffs and moisture-sensitive goods, plain jute is often upgraded:
- Food-grade jute — made with food-safe batching, no harmful mineral oils
- BOPP / PP-laminated jute — a moisture and leakage barrier for sugar, flour and fine grains
- Inner liners — a separate poly liner where a full moisture barrier is needed
- Printing — custom branding, weights and commodity marks
Mandatory jute packaging rules
Several markets actively favour or mandate jute packaging for certain commodities for environmental reasons — most notably India's jute packaging mandate for foodgrains and sugar, and Bangladesh's own mandatory jute packaging rules. For buyers, this matters two ways: it sustains strong, stable demand for B-Twill, and it can carry compliance requirements. Always confirm the current rules for your specific commodity and destination, as they are periodically updated.
Why buyers still choose jute sacks
- Breathable — lets grain and produce “breathe,” reducing spoilage and condensation
- Strong — the twill weave withstands repeated handling and stacking
- Reusable & biodegradable — no microplastic legacy, unlike woven PP
- Compliant — meets mandatory-jute rules where they apply
It is the same sustainability case driving the wider return to natural packaging — see why global brands are choosing jute packaging.
How to order B-Twill sacks
- Commodity and target fill weight (e.g. 50 kg rice)
- Sack size and cloth weight (or let us recommend from the commodity)
- Finish — plain, food-grade, laminated, lined
- Printing / branding artwork, if any
- Quantity (number of bags), destination port and Incoterm
Frequently asked questions
What is the difference between A-Twill and B-Twill?
They are weave/quality designations for sacking cloth; B-Twill is the common standard for general commodity sacks. Tell us your commodity and we will specify the right cloth.
Can you print our logo and weights on the sacks?
Yes — custom printing of brand, commodity, weight and lot marks is standard for bulk orders.
Do you supply food-grade sacks?
Yes, including food-grade batching and laminated/lined options. Specify the commodity and destination so we can match the requirement.
Order B-Twill sacks for your commodity
Tell us the commodity, fill weight and quantity and we will spec, sample and quote. See jute bags & sacks or request a quote.
