Does this make the bath water green or whatever color the salt appears to be ?

I got this for my husband, he said the water has a very light green color.

Where is this manufactured?

Dear Customer, Thank you for contacting us. Our goal is your satisfaction with the purchase. Our team makes every effort to reach it. It is produced in Netherlands. With natural fir essential oil Application: baths and skin care We have enriched each granule of sea salt with distinctive notes of pure essential fir needle oil. Sea salt helps to improves the health of the skin and has the overall beneficial effect on the human body saturating it with necessary macro-and micro elements. Description: The fir needle bath salt is rich in ions of calcium and sodium. These substances have tonic properties, regulate the level of cell moisture. Bathing with fragrant salt helps to fight fatigue and to relax. Application: dissolve 100-300 g of salt with warm water (35-45°C) and have a bath for 10-20 minutes for the ultimate practice. Nominal weight: 600 g Thank you for contacting us. If any questions arise, we will be glad to answer. It’s our pleasure to help you. Best regards, Aromatika Team

Is this product safe in hot tubs?

Dear customer, Thank you for contacting us. Our goal is your satisfaction with the purchase. Our team makes every effort to reach it. You can use it in hot tubs, jacuzzi, usual baths. Sea salt with natural essential oils is good for your health. Fully dissolve the required amount of salt in warm water. Thank you for contacting us. If any questions arise, we will be glad to answer. It’s our pleasure to help you. With kind regards, Aroamtika Team

Can someone not manufacturer answer the question is this safe for hot tubs?

No! It is not safe for hot tubs. Adding salt to hot tubs can destroy the pump mechanisms. You are not even supposed to use salt based bath additives to jetted bathtubs for this reason.