Arrowroot flour ingredient

All About Arrowroot flour

grains

Your complete guide to arrowroot flour - discover how to store it properly, identify when it's gone bad, and find the best substitutes for your recipes.

2 storage methods
16 substitutes

How Long Does Arrowroot flour Last?

Storage times and freshness tips for arrowroot flour in different conditions.

Safety first: This guide provides general information. When in doubt, throw it out! Trust your senses and err on the side of caution. If something smells, looks, or tastes off, don't consume it.

unopened pantry
1-2 years (often well past 'best by' date)

Signs of Spoilage

Punctured packaging, visible insects, severe moisture damage (clumping, mold).

How to Check

Visually inspect the packaging for any damage or signs of pests. The flour itself should appear as a fine, white powder.

Storage Tips

Arrowroot flour is very stable when unopened and stored correctly. The 'best by' date primarily refers to peak quality, not safety. Avoid areas prone to temperature fluctuations or high humidity.

opened pantry
6-12 months

Signs of Spoilage

Musty, sour, or rancid odor; visible mold (if moisture entered); clumping or hardening; discoloration (yellowing/darkening); presence of pantry pests (weevils, moths, larvae, webs).

How to Check

  1. Visual Inspection: Look for any discoloration, mold spots, or tiny insects/webs. Check for excessive clumping or hardening.

  2. Smell Test: Take a small pinch and smell it. It should be neutral or very mildly earthy. Any off, sour, musty, or chemical smell indicates spoilage.

  3. Touch Test: It should feel like a fine, dry powder. If it feels damp or excessively lumpy, it may have absorbed moisture.

Storage Tips

Transfer arrowroot flour to an airtight container (glass, sturdy plastic) immediately after opening. This protects it from moisture, strong odors, and pantry pests, which are the main threats to its freshness. Keep it away from heat sources and direct sunlight. While refrigeration or freezing is possible, it's generally not necessary and can introduce moisture if not perfectly sealed, leading to clumping when brought to room temperature.