02/11/2024
These products underwent testing by a third-party research firm and met test criteria for acceptable HE detergent.
The recommended dilutions of either 1 Tbsp. Sal Suds or 2-3 Tbsp. Castile for a large load.
While I've had many testimonials over the years from customers & colleagues alike about how well Dr. Bronner's Castile and Sal Suds works in HE (high efficiency) washing machines, we now have the testing to verify this! 🎉 This is important because HE washing machines use less water and as such, require detergents formulated to have low foam.
The products underwent testing by a third-party research firm and met test criteria for "acceptable HE detergent" when used at the recommended dilutions of either 1 Tbsp. Sal Suds or 2-3 Tbsp. Castile for a large load. Testing parameters included:
- The soap/detergent suds cannot fill the machine past 1/3 of the window at any time.
- The average cycle time cannot exceed the estimated cycle time by 15 minutes. This would indicate the machine senses excess product/suds and increases the rinse time.
- Machine cannot initiate a "suds lock error" which would be another indicator of an abundance of suds.
- To pass as “an acceptable HE detergent”, the test is done 4 times and must meet the criteria each time.