بسم الله الرحمن الرحيم
(1) It is mandatory to read tasmia (Bismillah Allahu Akbar) on each animal for the validity of slaughtering. And the person who is slaughtering the animal must read the tasmia. It is not lawful to slaughter the animals by machine while playing the tape-recorder with the recitation of Bismillah Allahu Akbar. It is not lawful to consume such machine slaughtered animals. On the occasion of Hajj and Umrah in case of suspicions one should avoid the meats.
(2) If the alcohol is not prepared from the four haram beverages (ripe or unripe wines of grapes and wines of dates and raisin) as alcohol of other ingredients is usually available then it is allowable to use such flavour.
(3) A heavy quantity of wine which is intoxicative its little quantity is also unlawful. However, if the wine is prepared from other than the four haram beverages and it has been changed into some other thing after drying it then it is lawful it in case of prevalent use.
Allah knows Best!
Darul Uloom Deoband