Format whole / cracked / milled |
Controls texture and processing. Whole seeds add crunch and visuals; milled flax disperses and can thicken binder phases. |
Choose based on your bar style and “seed identity” goals. Many bars use a blend (whole + small % milled).
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Variety & color golden vs brown |
Impacts appearance and subtle sensory differences. Golden often looks cleaner in light-colored bars. |
Specify golden or brown to maintain consistent visuals across lots. |
Moisture (% max) |
Affects shelf stability, clumping, and bar texture drift. Moisture differences can change binder viscosity and final chew. |
Ask for moisture limits and typicals; align to your QA requirements for low-water RTE products. |
| Water activity (aw) |
aw drives microbial stability and texture changes over time (hardening/softening). Important for no-bake bars. |
Confirm typical aw (or moisture + your own aw program) and keep consistent across lots. |
Particle size (milled) mesh / micron distribution |
Too fine can feel dusty and increase binder viscosity; too coarse can feel gritty and create uneven distribution. |
Define a sieve spec if sensitive; request consistency across lots for stable texture. |
Cleaning / purity foreign material controls |
Bars are consumer-visible; foreign material risk is high-impact. Purity also affects line downtime and complaints. |
Ask about cleaning steps, sorting, magnets, and typical foreign material control approach. |
| Micro (RTE suitability) |
Many bars are no-bake or have limited kill steps post-mix. Micro specs must fit your food safety plan. |
Request standard plate count, yeast/mold, and any pathogen testing required by your program. |
Oxidation control freshness, packaging |
Flax is oil-containing; milled flax is especially prone to oxidation, causing off-notes over time. |
Ask for shelf-life, storage conditions, packaging barrier/liner details, and recommended inventory turnover. |
| Certifications |
Supports organic label claims and customer requirements. |
Organic certificate (current, scope), kosher and non-GMO statements as needed. |
| Allergen statement |
Bars often use nuts/peanuts/soy/dairy in shared facilities. Cross-contact documentation is critical. |
Request allergen statement and facility cross-contact profile. |
| Packaging |
Controls freshness and handling. Partial bag reseal practices matter in smaller batch lines. |
Confirm bag size, liner type, pallet configuration, and reseal guidance for opened packs. |