Hi Rawdad - being over retirement age and having had repeated disappointments with pharmaceuticals and health shop supplements, when pickling lime and limewater was not readily available locally I opted for an $8 bag of locally-made builders lime (calcium hydroxide) and used a level teaspoon of the undiluted lime powder directly into my large 0.6 L. mug of moreless drink - I have drunk up to 4-5 of these per day when doing particularly heavy manual work, and have no ill-effects only benefits - apparently some sort of chemical change takes place rendering the hazardous aspects of the lime ineffective - I also add the lime powder, together with other drink ingredients, directly to my raw-salads - all the best with your experiments - Broh