There are no 'real' measurements to these recipes, I base it on the size of the glass bottle/container I'm placing them into. As you can see from the ingred. above there is 1 part Epsom salt to every 3 parts sea salts, so from here you can adjust the amounts of each scent you are making because the essential oil/milk/ amounts are really to eachs' personal taste.
Additional materials needed/suggested are:
I used bottles with cork tops from the craft store, Dollar Store, and any glass bottles or containers from antique stores (i.e. old fashioned soda bottles).
1-package, cork stoppers for your bottles.
1-spool of ribbon or raffia, for embellishment.
1-bunch dried flowers/herbs - for embellishment and/or to match your fragrances-optional (see note #7 below if you decide to add either directly to the salts). The flowers/herbs can include: lavender, rose petals, eucalyptus, sage or even some teas, used sparingly,like jasmine or chamomile.
1-package of labels, they have really nice ones from Martha Stewart at the craft stores (i.e. A.C. Moore & Michaels).
Mix all ingredients above in a glass bowl. When mixed well (there are no splotches of color) use a funnel to add your glass container and place top/cork on. Next, fill out a label with the scent and ingredients and affix to bottle. Finally, add ribbon or raffia to bottle and stick some dried flowers out of it for embellishment.
NOTE regarding dried flowers/herbs -- it is optional if you want to add the dried flowers to your salts. Sometimes I add just a pinch of lavender to my lavender scented salts for looks only. The problem with adding any dried flowers to your salts is that they don't dissolve. So, remember that they can stick to you or the tub when your bath is finished! If you really want to use dried flowers as part of the gift you can place them in muslin and make little "tea bags" to add to bath, this way they aren't stuck to you when you exit the bath! Or, better yet make some simple sachets to match your bath salts for their drawers or to just sit in the bathroom.
Lookout for my other posts like my sugar scrubs, that are great for exfoliating and moisturizing.