the best i have found is from t & j industries very concentrated very pure only need 1/2 cup for 5 gal water/tea and a small squirt in a bucketful thereafter they have the food grade and agricultural grade with & without the preseravitive also the best microbial tea ive ever used ,,its all i use now! they have everything you need to bust out a bad ass hi-brix grow
Although almost all growers know that yucca extract is essential for plant growth, most are unable to get a quality mix. Many growers end up worsening the condition of their plants due to improper instructions!
The actual recipe to make quality yucca extract is as following: Step 1: The first thing is to get original yucca roots, each weighing around 1 1/2 lbs preferably. You will find original roots at a supermarket vegetable counter.
Step 2: The next step is to peel and cube the roots. Once you’re done, add one cup of water and process them in a food processor. When water has completely dried, add four more cups and let the entire mix be there in the container for next 24 hours.
Step 3: Use a sieve to strain the liquid and yucca. Line the sieve using a clean cloth and filter the liquid at least twice. Collect the yucca liquid and store for use in freezing temperature.