Ask the Quality Silage Experts: Water Temperature for Inoculants

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Q. The water in my tank seems pretty hot by the end of the day. Is that bad for the forage inoculant?

A. The bacteria in liquid-applied inoculants can die off quickly following rehydration if not kept cool. Do not allow water with bacterial inoculants to reach high temperatures.

Return the rehydrated inoculant to the refrigerator or add ice blocks to maintain the temperature around 40˚ F or 4˚ C in case of weather or equipment delays. Insulated tanks can help keep inoculants cool even in the field.

Keeping the product cool once rehydrated will help ensure the bacteria will remain viable.

It’s also important to select an inoculant that will remain stable for some time following hydration. Some products contain a stability enhancer, which can give producers up to four days of tank life after rehydration as long as the inoculant is kept cool.

Always read and follow storage and shelf life instructions on the product label for specific information. For additional tips on using forage inoculants, visit


The Silage Dr.

Questions about silage management? Ask the silage quality experts on Twitter, Facebook or visit

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