I always drink bottled water wherever I go - even in Scotland where the water we have is meant to be the best. In Tunisia though I use tap water for tea, coffee, cooking as it'll be boiled. I also use tap water when brushing my teeth and so far no problems. Again with the food, I've never had any problems. They tend to use lots of harissa in many dishes (which I love) but sometimes it can be a bit hot so I think if you're not used to hot, spicy foods best not to overdo it - or pack the Rennies!!
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