In the meantime, in March 2017 the government announced that VAT is to be added to the cost of roaming in countries outside the EU. The result is that the cost of calls, texts and data is set to go up by 20%. At the time of writing, we don't know for sure when the charges will come into affect.
Bring to boiling. Add sweet potatoes. Cover the pan and cook sweet potatoes for 10 to 12 minutes or until just tender on the outside but resistant in the center when pierced with a knife. For soft, tender sweet potatoes, cook for 25 to 30 minutes.
How long does it take to boil potatoes can be better understood by boiling potatoes in microwave. This is a rather quick method because you do not need to boil potatoes. They are just washed, placed in water container and then put in the microwave for five minutes. You can keep the water container without a lid.