It is not the drinks but your effort in Sabbath to make it which is a violation.
Exodus 16:23 And he said unto them, This is that which the Lord hath said, To morrow is the rest of the holy sabbath unto the Lord: bake that which ye will bake to day, and seethe that ye will seethe; and that which remaineth over lay up for you to be kept until the morning.
24 And they laid it up till the morning, as Moses bade: and it did not stink, neither was there any worm therein.
25 And Moses said, Eat that to day; for to day is a sabbath unto the Lord: to day ye shall not find it in the field.
You need to prepare meal be4 Sabbath, THE PROBLEM IS, the manna cooked by the Hebrew be4 Sabbath would not stink during Sabbath as God preserved it, i dont think people could expect God to preserve their soup cooked be4 Sabbath because God gave the Law to the Hebrew and not to gentiles.
You are not allowed to start thine own words which means a conversation / use telephone
Isa 58: 13 If thou turn away thy foot from the sabbath, from doing thy pleasure on my holy day;
and call the sabbath a delight, the holy of the Lord, honourable;
and shalt honour him, not doing thine own ways, nor finding thine own pleasure,
nor speaking thine own words
And avoid pleasure of all kinds of entertainment from TV, radio, games, sport, hobbies, internet, movies etc.
You are also not allowed to move objects /muktzeh
Some of the categories of muktzeh are:
1. Objects which have no designated use, e.g.: Stones, plants, flowers in a vase, raw food (inedible in its present state, such as beans); an object that has broken and become no longer useful, such as a broken bowl, a button that falls off;
2. Valuable objects or those which would be used only for their designated task, for fear of damaging it, e.g.: Expensive items: camera, crystal decoration; professional tools: scalpel, electric wiring; important documents: passport, birth certificate;
3. Objects that are forbidden from use because of Torah prohibition, e.g.: Non-kosher food, chametz on Passover; also included are objects used for a mitzvah, such as sechach (rooftop greenery) that fell off a sukkah;
4. An object whose primary purpose is for an activity forbidden on Shabbat, e.g.: Hammer, stapler, pen. However, one is allowed to move these objects if a) they are needed for an activity permitted on Shabbat and nothing else can perform that task, e.g., a hammer to open a coconut or a telephone book as a booster seat or b) The place the object occupies is needed, e.g., if a pen is on a chair you want to sit on.
Anything that a muktzeh object rests upon is a basis--base for the muktzeh and becomes muktzeh itself if:
A. The muktzeh item was left on the spot intentionally, so that it remain there for at least part of Shabbat;
B. The object was placed there by the owner or with the knowledge of the owner;
C. At the start of Shabbat, the basis supported only the muktzeh and no non-muktzeh items.
An example of basis encountered every Shabbat is the Shabbat candles on the table. The candlesticks are muktzeh, and may not be removed from the table on Shabbat. The table holding the candlesticks may thus become a base for muktzeh and muktzeh itself, preventing it from being moved if necessary. To remedy this, we simply put another non-muktzeh item required for Shabbat on the table before the onset of Shabbat. Thus, although the candlesticks are muktzeh, the table holds the challah or prayerbook as well and may therefore be moved after the flames have gone out.
You are not allowed to CARRY objects during Sabbath
On Shabbat one may not carry or transfer objects between a "reshut ha-yachid" (private, enclosed domain, such as the house); and a "reshut ha-rabim" (public domain, such as the street). Neither may one carry an object in a reshut ha-rabim for more than four cubits (six feet). Examples of this prohibition include: carrying in one's pocket; carrying anything in the hand; wheeling a baby carriage or shopping cart, going outside with gum or food in the mouth. This prohibition also includes carrying in public hallways or yards of multiple dwellings, unless an eiruv chatzeirot is made. An eiruv chatzeirot is an arrangement whereby carrying in some of the above situations is permitted. In addition, the area in which one wishes to carry must be enclosed. This enclosure, commonly referred to as an eiruv, can occur naturally or be man-made, and must be constructed before Shabbat.
So the observant Jew does not cook, spend money, write, operate electrical devices, doesn not leave home, write, carry things, moving things, no wordly conversation or telephone etc etc.
This is what Paul had to say about Sabbath, Paul need to explain this because Torah was not given to gentiles in Colosse and they did not understand about Sabbath, or clean meat or Holy Days or circumcision so Paul need to say this :
Colossians 2: 16 Let no man therefore judge you in meat, or in drink, or in respect of an holyday, or of the new moon, or of the sabbath days: 17 Which are a shadow of things to come; but the body is of Christ.
THE TORAH WITH 613 MITZVOT IS HANGING ON THESE TWO LAWS :
Matt 22:37 Jesus said unto him, Thou shalt alove the Lord thy God with all thy bheart, and with all thy soul, and with all thy cmind.
38 This is the first and great acommandment.
39 And the second is like unto it, Thou shalt alove thy neighbour as thyself.
40 On these two commandments hang all the Law and the prophets.
Paul, if he has not converted would drag all of us the smart christians to jail if we live in the early church of the apostles for breaking the TORAH COMMANDMENTS. Because Paul knew better about the Law.
Acts 22:3 "I am a Jew, born in Tarsus of Cilicia, but brought up in this city. I studied under Gamaliel and was thoroughly trained in the law of our ancestors.
This Torah Commandments which we think we know better than Paul has been put to graves with the death and resurrection of Jesus Christ, God has torn down the curtain at the Temple of God, He has a New Covenant in Jesus Christ : 1. Love God 2. Love your neighbour.
All the Torah Law including one jot and one title has been fulfilled in the above 2 Commandments thats why its called the NEW TESTAMENT OF JESUS CHRIST.
Matt 5:18 For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the alaw, till all be bfulfilled.